package com.tk.sync;

public class UnsafeBank {
    public static void main(String[] args) {
        Account account = new Account(100, "基金");
        Drawing you = new Drawing(account, 50, "你");
        Drawing girlfriend = new Drawing(account, 100, "girlfriend");

        you.start();
        girlfriend.start();

    }
}

class Account {
    int money; //余额
    String name; //卡号

    public Account(int money, String name) {
        this.money = money;
        this.name = name;
    }
}

class Drawing extends Thread {
    Account account;
    int drawingMoney;
    int nowMoney;

    public Drawing(Account account, int drawingMoney, String name) {
        super(name);
        this.account = account;
        this.drawingMoney = drawingMoney;
    }

    @Override
    public void run() {
        synchronized (account){
            if (account.money - drawingMoney < 0) {
                System.out.println(Thread.currentThread().getName() + "余额不够");
                return;
            }

            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            account.money = account.money - drawingMoney;
            nowMoney = nowMoney + drawingMoney;

            System.out.println(account.name + "余额为" + account.money);
            System.out.println(this.getName() + "手里的钱：" + nowMoney);
        }
    }
}
